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See detailOn the capability to derive mass estimates from high-low satellite-to-satellite tracking data
Weigelt, Matthias UL; van Dam, Tonie UL; Tourian, M. J. et al

Poster (2013, December)

Recently it has been shown that it is possible to derive time-variable gravity signals from high-low satellite-to-satellite tracking (hl-SST) missions (Weigelt et al. 2013, JGR:Solid Earth, doi:10.1002 ... [more ▼]

Recently it has been shown that it is possible to derive time-variable gravity signals from high-low satellite-to-satellite tracking (hl-SST) missions (Weigelt et al. 2013, JGR:Solid Earth, doi:10.1002/jgrb.50283). Based on the GPS information only, we will present results derived from the dedicated gravity field missions CHAMP, GRACE and GOCE which allow us to determine mass estimates for various applications. Hydrologically induced mass changes on land cause the strongest mass variations in the gravity field and can be easily identified in the hl-SST data, especially in areas with strong signals such as the Amazon basin. Ice melt in Greenland can be derived from the data and mass estimates compare well to corresponding GRACE estimates. Also, loading time series based on these gravity field solutions agree well with GPS observations for various stations around the globe. We also discuss the limitations of the data, e.g. in detecting signals related to glacial isostatic adjustment or earthquake-induced gravity field changes. Overall, we will demonstrate that the quality of the GPS data is sufficient nowadays and with a proper processing strategy it is possible to derive reasonable mass estimates. As such, this type of observations may allow to bridge a possible gap between GRACE and its successor GRACE Follow-On scheduled for launch in 2017. [less ▲]

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See detailOn the capability of non-dedicated GPS-tracked satellite constellations for estimating mass variations: case study SWARM
Reubelt, T.; Baur, O.; Weigelt, Matthias UL et al

Scientific Conference (2013, September)

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See detailBridging the gap between GRACE and GRACE follow-on: the potential of SWARM and SLR to detect time-variable gravity
Baur, O.; Reubelt, T.; Weigelt, Matthias UL

Scientific Conference (2013, September)

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See detailGOCE long-wavelength gravity field recovery from 1s-sampled kinematic orbits using the acceleration approach
Reubelt, T.; Baur, O.; Weigelt, Matthias UL et al

in GGHS2012 - Gravity, Geoid and Height Systems 2012 (2013)

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See detailOn the capability of SWARM for estimating time-variable gravity fields and mass variations
Reubelt, T.; Baur, O.; Weigelt, Matthias UL et al

Poster (2012, October)

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See detailGOCE orbit analysis: Long-wavelength gravity field determination using the acceleration approach
Baur, O.; Reubelt, T.; Weigelt, Matthias UL et al

in Advances in Space Research (2012), 50(3), 385--396

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See detailLong wavelength gravity field determination from GOCE using the acceleration approach
Weigelt, Matthias UL; Baur, O.; Reubelt, T. et al

Poster (2011, April)

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See detailLong wavelength gravity field determination from GOCE using the acceleration approach
Weigelt, Matthias UL; Baur, O.; Reubelt, T. et al

in Proceedings of the 4th GOCE User Workshop, ESA SP-696 (2011, April)

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See detailTime variable gravity field recovery in local areas by means of Slepian functions
Weigelt, Matthias UL; van der Wal, W.; Sneeuw, N. et al

Poster (2007, July)

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